Problem 44334. Sums of Multiple Pairs of Triangular Numbers

Created by James

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Solution Stats

691 Solutions
204 Solvers

Last Solution submitted on Feb 23, 2021

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Rafael S.T. Vieira on 2 Jul 2020

The first test case is wrong 0 and 21 are triangular numbers too (https://oeis.org/A000217), therefore:
multi_triangular(21)
[ 0, 6;
21, 15]

PS: And 0 does not make a pair with every number in this case.

Solution Comments

Solution 1373096

2 Comments

2 Comments

Smith on 8 Dec 2017

What's wrong with the case x=20 in test suite? Why is y_correct=[ 10 10] ? I cannot pass it.

James on 11 Dec 2017

I don't know why your cheat isn't working, but look closely at what numbers your "for n=1:N" loop generates for that case.

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cody5 triangular numbers

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